Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
December
Weather in December
Temperature
The start of December signals a decrease in the average high-temperature, transitioning from a cold 5.5°C (41.9°F) in November to a still wintry 0.5°C (32.9°F). Świsłoczany observes an average low-temperature of -2.9°C (26.8°F) during the slightly cooler nights of December.Humidity
The average relative humidity in December is 91%.Rainfall
In December, the rain falls for 9.6 days. Throughout December, 39mm (1.54") of precipitation is accumulated. In Świsłoczany, during the entire year, the rain falls for 158 days and collects up to 495mm (19.49") of precipitation.Snowfall
January through April, October through December are months with snowfall. In Świsłoczany, in December, snow falls for 14.3 days, with typically accumulated 122mm (4.8") of snow. Throughout the year, there are 65.2 snowfall days, and 539mm (21.22") of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 7h and 42min of daylight.On the first day of December, sunrise is at 07:15 and sunset at 15:11. On the last day of the month, sunrise is at 07:38 and sunset at 15:17 CET.
Sunshine
The average sunshine in December is 1.7h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: In December, a daily UV index of 1 turns into the following recommendations:
Children, infants, and individuals with sensitive skin should be constantly protected from extended sun exposure. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December?
What is the average humidity in December in Świsłoczany?
How many days does it rain in December?
How much does it snow in December?
What is the month with the shortest days in Świsłoczany?
How many hours of daylight does Świsłoczany have in December?
When is the sunrise / sunset in December?
How many hours of sunshine does Świsłoczany have in December?
What are the months with the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Świsłoczany, Poland
- Average high temperature in December: 0.5°C
The warmest month (with the highest average high temperature) is July (24.3°C).
The month with the lowest average high temperature is January (-1.9°C).
- Average low temperature in December: -2.9°C
The month with the highest average low temperature is July (13.5°C).
The coldest month (with the lowest average low temperature) is January (-5.8°C).
Average pressure in December
Świsłoczany, Poland
- Average pressure in December: 1015.7mbar
The month with the highest atmospheric pressure is October (1018.4mbar).
The month with the lowest atmospheric pressure is July (1013mbar).
Average wind speed in December
Świsłoczany, Poland
- Average wind speed in December: 13.3km/h
The windiest month (with the highest average wind speed) is December (13.3km/h).
The calmest month (with the lowest average wind speed) is August (9.9km/h).
Average humidity in December
Świsłoczany, Poland
- Average humidity in December: 91%
The month with the highest relative humidity is January (93%).
The months with the lowest relative humidity are April and August (71%).
Average rainfall in December
Świsłoczany, Poland
- Average rainfall in December: 39mm
The wettest months (with the highest rainfall) are May and July (64mm).
The driest months (with the least rainfall) are February and April (25mm).
Average rainfall days in December
Świsłoczany, Poland
- Average rainfall days in December: 9.6 days
The month with the highest number of rainy days is July (20.8 days).
The month with the least rainy days is February (7 days).
Average snowfall in December
Świsłoczany, Poland
- Average snowfall in December: 122mm
The month with the highest snowfall is January (172mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in December
Świsłoczany, Poland
- Average snowfall days in December: 14.3 days
The month with the highest number of snowfall days is January (18 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Świsłoczany, Poland
- Average daylight in December: 7h and 4min
The month with the longest days is June (Average daylight: 16h and 54min).
The month with the shortest days is December (Average daylight: 7h and 42min).
- Average sunshine in December: 1h and 4min
The month with the most sunshine is June (Average sunshine: 11h and 12min).
The month with the least sunshine is January (Average sunshine: 1h and 30min).
Average sunshine days in December
Świsłoczany, Poland
- Average sunshine days in December: 9.5 days
The month with the most sunshine days is October (16.3 days).
The month with the least sunshine days is July (8.4 days).
Average UV index in December
Świsłoczany, Poland
- Average UV index in December: 1
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in December
Świsłoczany, Poland
- Average cloud cover in December: 78
The months with the most cloud cover are January and February (Cloud cover 81).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in December
Świsłoczany, Poland
- Average visibility in December: 7km
The months with the highest visibility are April, May, June, July, August and September (9km).
The months with the lowest visibility are January and February (6km).
